Roll src/third_party/angle/ 2a35741bd..87c358839 (2 commits)

https://chromium.googlesource.com/angle/angle.git/+log/2a35741bd197..87c358839ccd

$ git log 2a35741bd..87c358839 --date=short --no-merges --format='%ad %ae %s'
2017-10-19 oetuaho Prune no-op statements with a single traverser
2017-10-13 jiawei.shao Fix incorrect hashing on built-in interface block fields

Created with:
  roll-dep src/third_party/angle


Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, see:
http://www.chromium.org/developers/tree-sheriffs/sheriff-details-chromium#TOC-Failures-due-to-DEPS-rolls


CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.angle:android_angle_rel_ng,android_angle_deqp_rel_ng,linux_angle_rel_ng,linux_angle_dbg_ng,linux_angle_deqp_rel_ng,linux_angle_ozone_rel_ng,mac_angle_rel_ng,mac_angle_dbg_ng,win_angle_rel_ng,win_angle_dbg_ng,win_angle_x64_rel_ng,win_angle_x64_dbg_ng,win_angle_deqp_rel_ng,win_angle_x64_deqp_rel_ng;master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
TBR=cwallez@chromium.org

Change-Id: Ibf9563df538d0edf6fd1411a9fd2a9e95fd07935
Reviewed-on: https://chromium-review.googlesource.com/744102Reviewed-by: angle-deps-roller . <angle-deps-roller@chromium.org>
Commit-Queue: angle-deps-roller . <angle-deps-roller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#512535}

DEPS

@@ -67,7 +67,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling ANGLE
   # and whatever else without interference from each other.
-  'angle_revision': '2a35741bd1976339df3b63a0e0dfb323fd33ac40',
+  'angle_revision': '87c358839ccde050baa73185a201779a1cd73e84',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling build tools
   # and whatever else without interference from each other.